Natural Philosophy, for Schools, Families, and Private StudentsHuntington & Savage, 1848 - 296 pages |
Other editions - View all
Natural Philosophy for Schools, Families, and Private Students Lincoln Phelps No preview available - 2015 |
Natural Philosophy for Schools, Families, and Private Students Lincoln Phelps No preview available - 2023 |
Common terms and phrases
air-pump angle of incidence appear atmosphere attraction axis axle ball barometer body called cause celestial center of gravity circle color column compressed concave lens concave mirror condensed converge convex lens convex mirror crystalline lens diameter direction distance diverge earth effect elastic electricity equal fall feet figure fluid focus force friction fulcrum glass globe greater heat heavens horizontal inch inclined plane laws lens less lever liquid machine magnetic matter means mechanical motion move Natural Philosophy nature nearer object obliquely optical orbit particles pass pendulum perpendicular Philosophy piston placed poles portion pound weight pounds pressure produced proportion pulley quantity rays of light reflected refractive power represent resistance retina rise screw seen side solar solid sound space specific gravity stars steam stone substance Suppose surface telescope tion tube upward valve vapor velocity vessel vibrations weight wheel
Popular passages
Page 157 - In the present perfect state of the engine, it appears a thing almost endowed with intelligence. It regulates with perfect accuracy and uniformity the number of its strokes in a given time, counting or recording them moreover, to tell how much work it has done, as a clock records the beats of its pendulum ; it regulates the quantity of steam admitted to work ; the briskness of the fire ; the supply of water to the boiler ; the supply of coals to the fire ; it opens and shuts its valves with absolute...
Page 10 - Accustomed to trace the operation of general causes,' and the exemplification of general laws, in circumstances where the uninformed and uninquiring eye perceives neither novelty nor beauty, he walks in the midst of wonders : every object which falls in his way elucidates some principle, affords some instruction, and impresses him with a sense of harmony and . order.
Page 19 - All these things being considered, it seems probable to me that God in the beginning formed matter in solid, massy, hard, impenetrable, movable particles, of such sizes and figures, and with such other properties and in such proportion to space as most conduced to the end for which he formed them...
Page 209 - Tunes her nocturnal note : thus with the year Seasons return, but not to me returns Day, or the sweet approach of even or morn, Or sight of vernal bloom, or summer's rose, Or flocks, or herds, or human face divine...
Page 157 - ... may be seen dragging after it, on a rail-road, a hundred tons of merchandise, or a regiment of soldiers, with greater speed than that of our fleetest coaches. It is the king of machines, and a permanent realization of the Genii of Eastern fable, whose supernatural powers were occasionally at the command of man.
Page 172 - ... when the force of the moving membrane of the drum, acting through the chain of bones, is made to compress the water, the pressure is felt instantly over the whole cavity.
Page 169 - After a pause this fairy harp may be heard beginning with a low and solemn note, like the bass of distant music in the sky : the sound then swells as if approaching, and other tones break forth, mingling with the first, and with each other...
Page 202 - This amounts to the same with saying, that, in the case before us, the sine of the angle of incidence is to the sine of the angle of refraction in a given ratio.
Page 157 - Its aliment is coal, wood, charcoal, or other combustible ; it consumes none while idle ; it never tires, and wants no sleep ; it is not subject to malady when originally well made, and only refuses to work when worn out with age ; it is equally active in all climates, and will do work of any kind ; it is a water-pumper, a miner, a sailor, a cotton-spinner, a weaver, a blacksmith, a miller, &c.
Page 14 - A mind which has once imbibed a taste for scientific inquiry, and has learnt the habit of applying its principles readily to the cases which occur, has within itself an inexhaustible source of pure and exciting contemplations : — one would think that Shakspeare had such a mind in view when he describes a contemplative man as finding " Tongues in trees — books in the running brooks — Sermons in stones — and good in every thing.